.number-keyboard {
  z-index: 2;
  position: fixed;
  width: 300px;
  height: 180px;
  background-color: #fff;
  box-shadow: 0 0 4px 0 rgba(0, 0, 0, 0.5);
  border-radius: 4px;
  overflow: hidden;
  outline: none;
  transition: 0.2s ease-in;
}
.number-keyboard li {
  float: left;
  width: 100px;
  height: 45px;
  border-right: 1px solid #cacaca;
  border-bottom: 1px solid #cacaca;
  font-size: 20px;
  color: #666666;
  line-height: 43px;
  text-align: center;
  user-select: none;
}
.number-keyboard li:active {
  background-color: #eadcf1;
}
.number-keyboard li.confirm {
  color: #fff;
  font-size: 16px;
  background-color: #8e729d;
  border-right-color: #8e729d;
  border-bottom-color: #8e729d;
}
